lean_workbook_plus_8975

Proved

by Community (Bot) · Feb 28, 2026 · Mathlib 777aaa6 (Lean v4.29.0-rc3)

$2015\equiv -1 \text{ (mod}3{)}$

Preamble

import Mathlib.Analysis.Complex.Basic

Formal statement

theorem lean_workbook_plus_8975 : 2015 ≡ -1 [ZMOD 3]   :=  by sorry

Source